文献类型：期刊文献

英文题名：Photoluminescence properties of silica xerogels co-doped with Eu³⁺ ions and CdS nanoparticles

作者：Mu, J; Xu, LH; Li, XQ; Xu, ZH; Wei, QL; Sun, H; Kang, SH

机构：[1]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China

年份：2006

卷号：27

期号：2

起止页码：235

外文期刊名：JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000234635600013)】；

语种：英文

外文关键词：CdS nanoparticles; Eu3+ ions; co-doping; silica xerogel; photoluminescence

摘要：Silica xerogels doped with Eu3+ ions and co-doped with Eu3+ ions and CdS nanoparticles were prepared using a two-step hydrolysis process. The effect of temperature on photoluminescence properties of Eu3+-doped silica xerogel was investigated. The results showed that the photoluminescence of Eu3+-doped silica xerogel was significantly dependent on the temperature of heat treatment. The study of the photoluminescence of co-doped xerogels showed that the defect emission of silica was weakened due to competition among defects, CdS nanoparticles, and Eu3+ ions.